Category ‘Projects’

PL/SQL Unit Testing with DBUnit

My colleague Slavomír Jeleň and I are currently working on a logistics management application for an international food retailer. It’s a data-oriented application that performs pre-calculation steps on billions of rows with PL/SQL stored procedures. In order to ensure the correctness of these calculations, we devised a solution for unit testing the stored procedures in Oracle based on DBUnit.

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Building a scalable Web-based Call Center CTI Solution

My project was part of our customer’s effort to replace all of the enterprise applications with web applications based on a standardized technology stack. In this strategic move, the call center integration was a crucial step. As it turned out, the technical design of the new call center telephony solution was quite challenging. We did not only learn a lot about CTI; we also had to implement the system to be scalable and ensure that it handles more than 1000 call center agents.

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Ultra-Performant Dynamic Websites with Varnish

This article describes how we configured and used the Varnish web cache for the popular German online shop www.lidl.de. Varnish gave us a tremendous performance boost. With this new caching setup, we easily achieve request rates of several thousand pages per second, which are quite common during marketing campaigns like special offers.

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Practical Customer Participation in JIRA Workflows

This second part of our blog series continues with the topic of direct involvement of customers and gives some practical examples of when, where and how to introduce and include your customer into JIRA. We will then discuss two of mgm’s proven real-world workflows and use them as case studies about appropriate modes for successful customer participation. You will also learn about our recommended ways of keeping the complexity of huge JIRA projects from the customer.

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Successfully Embracing JIRA in the whole Project Lifecycle

This two-part series shows how JIRA can be used for other things than just bug tracking and presents mgm’s experiences with embracing JIRA in nearly all parts of traditional and agile project lifecycles, resulting in a number of customized, optimized JIRA workflows and processes. In this first part, I will give you an overview of challenges we faced over the years and how we adapted JIRA to meet them. You will get a taste of the vast variety of uses we have found for JIRA and understand why we decided to use only one tool instead of many.

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Must-Know URL Hash Techniques for AJAX Applications

By coding the page state into the URL, even single-page web applications can support deep bookmarks and the browser’s back button. The most accepted approach is to utilize the location hash, i.e. the local part of the URL. This article explains this technique and what pitfalls you should be aware of, based on my team’s experience from building an AJAX interface for Solr. You will also learn about the HTML5 History API, which is a second, more modern technique.

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Effective and Efficient Techniques for a Rule-Based Test-Data Generator

This part explains some of the sophisticated software technology that is working behind the scenes in our rule-based test-data generator for form-centric applications. You will see that a simple enumeration of all possible ways to fill in a form is likely doomed to run longer than the age of the universe. Therefore more efficient techniques are needed to make the seemingly impossible possible.

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How Google’s Geocoding solves Address Validation

For the e-commerce business, it is very important to have a valid and correct address base. Sending packages to incorrect addresses causes significant losses, since packages are not delivered and sent back. In the case of the Kickz online shop, we faced exactly this problem. Thus, we thought about how to improve and force users to enter correct addresses. Learn how we used Google’s Geocoding service to solve this problem.

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